Window-sash lock.



No. 893,195. I PATENTED'JULY 14, 19,08.

- H. RENTNBR.

WINDOW SASH LOCK.

APPLIUATION FILED MAB-14. 1908.

HARRY RENTNER, OF CLEVELAND, OHIO.

wrnDow-sAsH LOCK.

Specification of Letters Patent.

Patented July 14, 1908.

Application filed March 14, 1908. Serial No. 421,052.

To all whom it may concern:

Be it known that I, HARRY RENTNER, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Im rovements in Window-Sash Locks, of which t e following is a specification, reference beinghad to the accompanying drawings.

My invention relates to improvements in window sash locks, and consists of the novel features of construction .and the combination and arrangement of parts hereinafter fully described and claimed. I

The object of the invention is to rovide a device of this character which will e simple and inexpensive in construction, easy to apply to a window of any form and construction and which will be self locking and effective in its operation.

The above and other objects of the invention are attained in its preferred embodiment illustrated in the accompanying drawings, in which Figure 1 is a front elevation of a portion of a window showing my improved sash lock.

mounted thereon; Fig. 2 is a detail edge view of the same; Fig. 3 is a section taken on the lane indicated by the line 33 in Fig. 1; ig. 4 is a view of the-attaching plate; and Fig. 5 is a rear view of the catch.

In the drawings 1 denotesa ortion of a window sash slidably arranged 1n awindow frame 2 which has one or more sockets 3 covered by metallic plates 4 and adapted to receive my improved locking catch 5. The latter is pivotally mounted upon an attaching plate or block 6 secured upon the sash 1 in such position that said catch will enter the socket in the frame when the sash is closed. The attaching 6-plate is here shown as of rectangular form having its front edges beveled and recessed as at 7 to receive screws or similar fastenings 8 for attaching the device to a sash. In the front face of the plate 6 is also formed a recess 9 in which the catch 5 is pivoted and which is adapted to be closed by a cover plate 10 held on the attaching plate 6 by a screw 11 whichalso serves as the pivot for the catch 5. Said catch 5 has its reduced upper end arranged and pivoted in the recess 9 and its enlarged lower end 12 is formed with a finger piece or projection 13 and a lug or projectlon 14, said and with op projections extending in substantially opposite directions. The lug 14 forms a pawl or dog which is adapted to enter the socket 3 in the window frame and for the purpose of reducing friction and preventing said lug from marrlng the window frame as the sash is raised or lowered I journal in a recess 15 in said lug or projection an anti-friction roller 16. The catch or dog 5 is actuated by a leaf spring 17, the upper end of which is arranged in a kerf 18 in the bottom of the recess 9 and retained in'said kerf by a screw 19. The lower free end of the spring projects loosely into a kerf or groove 20 formed in the under face of the enlarged or thickened portion 12 of the catch, as will be readily seen upon reference to the drawings. Said spring tends to swing the catch towards the window frame and keeps the roller 16 at all times in contact with said frame so that when the sash is closed the projection 14 will be forced into the socket 3 in the window frame to lock the sash in its closed position.

From the fore oing it will be seen that my improved sash Iock is exceedingly simple, strong, durable and inexpensive in construction, that it is easy to apply to a window frame of any form and construction, that it is-self locking, and that it will effectively se cure the sash in its closed position. It will be understood that the device may be applied to any portion of a window sash or to a vslrlindow frame so that it may engage the sas Having thus described my invention What I claim is:

1. A sash lock comprising an attaching plate, a catch pivoted thereon, said plate and catch being formed with kerfs, a leaf spring arranged in said kerfs, the kerf in the catch being adapted to loosely receive the s ring and a screw for retaining the spring in tile kerf in the plate. I

' 2. A sash fastener comprising an attaching .plate having a recess and a kerf, a catch having a reduced portion arranged in the recess and an enlarged portion formed with a kerf positely extending projections, one projection serving as a finger piece and the other being bifurcated, an anti-friction roller journaled in the bifurcated projection, a cover plate arranged over the recess in the attaching plate, a screw passing through the cover plate and the reduced portion of the In testimony whereof I hereunto allix my vcatch and into the attaching plate to pivot signature in the presence of two witnesses.

the catch and secure the attaching plate a 7 T leaf spring arranged in the kerfs in the at- HARR1 RENTBER 5 taching plate and catch, and a screw for re- Witnesses:

taining the spring in the kerfs in the attach- FRED HENK,

in late. THEODORE RENTNER. 

